What does the image replicator do or rather what does disabling this module affect?

It does exactly what the name suggests… It replicates (copies forth and back) images between different nodes. You don’t need this in your setup. So disabling should be fine. Just keep that in mind for the next upgrade or if you wanna extend your FOG setup and add another node.

@wayne-workman I had this happen one other time in fog it turns out it was something to do with fog and tom Elliott fixed it. So i figure it must be something in this newest revision of fog acting up again in this case perhaps the same thing or a different thing affecting the image replicator.

@dureal99d Is it just one single FOG server or do you have storage nodes as well? Maybe image replication is going on? Other than that I wouldn’t know what should be writing/reading to/from the images directory all the time.